FIELD: physics.
SUBSTANCE: document includes a substrate and contains two hidden markings visually indistinguishable, when observed in daylighting on its surface, or in its composition. The markings are made in the form of periodic code sequences. The code sequences contain predetermined information. The material of one of the markings has magnetic properties different from the magnetic properties of the substrate material, and the second marking material has spectral properties or luminescent properties in the infrared spectral range that are different from the corresponding spectral or luminescent properties of the substrate material.
EFFECT: increasing the security level of a valuable document from partial forgery.
18 cl, 7 ex, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING VALUABLE DOCUMENT PROTECTED FROM PARTIAL FORGERY, AND RECEIVED DOCUMENT | 2016 |
|
RU2616643C1 |
| VALUABLE DOCUMENT PROTECTED AGAINST FORGERY AND METHOD OF DETERMINING ITS AUTHENTICITY | 2012 |
|
RU2523812C2 |
| SELF-SCAN PROOF AUTHENTIFIED SECURITY ISSUE | 2004 |
|
RU2345419C2 |
| IMPORTANT DOCUMENT AND PROTECTIVE DESIGNATION WITH MARKING SUBSTANCE | 2002 |
|
RU2305866C2 |
| METHOD FOR PRODUCING VALUABLE DOCUMENT, VALUABL DOCUMENT AND METHOD FOR DETERMINING ITS AUTHENTICITY | 2016 |
|
RU2616448C1 |
| METHOD OF MARKING ANTI-COUNTERFEIT OBJECT, METHOD OF IDENTIFYING MARKING AND MARKING IDENTIFICATION DEVICE | 2019 |
|
RU2720464C1 |
| METHOD FOR APPLYING A MARKING DISTINGUISHABLE BY TOUCH ONTO VALUABLE DOCUMENT, AND ALSO VALUABLE DOCUMENT AND COUNTERFEITING-PROTECTED PAPER WITH SUCH MARKING | 2003 |
|
RU2321498C2 |
| VALUABLE DOCUMENT | 2005 |
|
RU2381906C2 |
| ARTICLE HAVING CARRIER WITH PROTECTIVE LABELLING AND METHOD OF AUTHENTICATING ARTICLE | 2014 |
|
RU2561073C1 |
| VALUABLE DOCUMENT WITH COUNTERFEIT PROTECTION (VERSIONS), METHOD FOR COUNTERFEIT PROTECTION OF VALUABLE DOCUMENT (VERSIONS), DEVICE FOR VISUALISATION AND PROTECTIVE ELEMENT (VERSIONS) | 2008 |
|
RU2379194C1 |
